Acousto-optical device using a superlattice as the interaction meduim
US5130843A · kind A · utility
16Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1990 |
| Grant date | Jul 14, 1992 |
| Priority date | — |
| Expiry date | Jun 14, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This device comprises a photoelastic interaction medium between an incident light beam (28) and at least one acoustic or sound wave, as well as means (4, 6) for producing the acoustic or sound wave. The interaction medium is a superlattice (18), which is transparent to the light beam and whose period is close to an integral multiple of half the wavelength of the light beam in the superlattice. Application to the production of acousto-optical deflectors and modulators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.